it's a little too agressive. for example, i set it so firefox automatically handles all web links, and that means it is impossible to use the stock browser anymore. opening the browser and loading the homepage triggers an intent to load a webpage, so android opens firefox and loads the homepage there.

also, it can get a little annoying to constantly be asked what app you want to use to do things, but this annoyance goes as you click the "don't ask me again" checkbox for more and more intents.